mruby on web - under 4kb

Drop here "mrb" file (ver 2.0) to run on mruby on web!
This minimum VM supported just simple calc only!
Modify yourself you like!
(If VM size exceeds 4KB, use test-wasm.html)
API: mruby-l1vm, WebAssembly / wasm
APP: CC BY fukuno.jig.jp